MADRID (AP) — Novak Djokovic joined Rafael Nadal in declaring he won't play again on the new blue clay court at the Madrid Open after losing to Janko Tipsarevic 7-6 (2), 6-3 Friday in an all-Serb quarterfinal. Tipsarevic won for the second time in five matches against Djokovic, who last lost at this stage in November at the Paris Masters. "I want to forget this week as soon as possible and move on to the real clay courts," the top-ranked Djokovic said.